ClimateAverages

Saint-Denis Climate

Reunion, Réunion · 4 weather stations within 200 km · records 1853 to 2025

Average annual daytime high
26.4°C
Warmest month · February
28.8°C
Typical daytime high
Coldest month · August
17.1°C
Typical overnight low

Saint-Denis has an average annual daytime high of 26.4°C, based on the 1951 to 1980 baseline. Its warmest month is February, when highs typically reach 28.8°C, and its coldest is August, with overnight lows near 17.1°C.

Month by month averages

MonthAvg highAvg low
January28.7°C22.6°C
February28.8°C22.7°CWarmest
March28.6°C22.6°C
April27.6°C21.3°C
May26.2°C19.6°C
June24.6°C18.0°C
July23.7°C17.2°C
August23.7°C17.1°CColdest
September24.4°C17.8°C
October25.2°C18.7°C
November26.9°C20.3°C
December28.0°C21.6°C

Temperature range across the year

15°19°23°27°31°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2018
+1.6°C vs. 1951–1980
Coldest year on record
1890
-0.8°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Saint-Denis getting hotter?

Since 1900, Saint-Denis's average temperature has risen by +1.3°C. Compared to the earliest station records that begin in 1853, warming totals +1.4°C.

22.6°23.1°23.6°24.0°24.5°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
June to October

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Saint-Denis?

Saint-Denis's average annual daytime high is 26.4°C, based on the 1951 to 1980 baseline period. The warmest month is February, with highs averaging 28.8°C, and the coldest is August, with lows averaging 17.1°C.

What is the warmest month in Saint-Denis?

February is the warmest month in Saint-Denis, with typical daytime highs of 28.8°C.

What is the hottest year on record for Saint-Denis?

2018 is the hottest year on record for Saint-Denis, running +1.6°C above the 1951 to 1980 baseline.

Is Saint-Denis getting hotter?

Yes. Since 1900, Saint-Denis has warmed by roughly +1.3°C.

When is the best time to visit Saint-Denis?

June to October typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.